I agree with the above ^^^ You can find some Git tutorials that familiarize you with how it works from the command line.

Also, I just have my personal site hosted through Github, and so I tend to actually work on my FCC projects in that Github repository, so I can commit code as I progress on the project and incorporate Git as part of my regular workflow, and then once I finish the project I just add the code back into CodePen for the FCC completion. Or something along those lines.

Hey. Did you find a way to do this? If I am not wrong you wanted to take all the challenges accomplished so far to github repository, right? I want to do the same so that I can have all my solutions at one place.